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Fig. 4 | Immunity & Ageing

Fig. 4

From: A sustained high fat diet for two years decreases IgM and IL-1 beta in ageing Wistar rats

Fig. 4

Level of testosterone and prolactin over time and between dietary regimens (HFD vs. SD). Circles represent mean values at different age groups [grey circle: baseline value, closed circles: HFD, open circles: SD]. a Plasma level of testosterone. b Plasma level of prolactin. c Prolactin to testosterone ratio over time. ANOVA was used to determine overall difference between dietary regimen, age groups, and possible interaction (AgeDiet). Error bars represent the S.E.M. Young: 2 month, middle aged: 6–12 month, old: 18–24 month

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